Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

12840905 (number)

12840905 is an odd 8-digits composite number following 12840904 and preceding 12840906. In scientific notation, it is written as 1.2840905 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 8004480 positive integers (up to 12840905) that are relatively prime to 12840905.

Interesting facts

12840905 has 4 divisors, whose sum is 12874644
The reverse of 12840905 is 50904821
Previous prime number is 385

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twelve million eight hundred forty thousand nine hundred five

Notation

Scientific notation	1.2840905 × 10^7
Engineering notation	1.2840905 × 10^6

Prime Factorization of 12840905

Prime Factorization 385 × 33353

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12840905	Product of the distinct prime numbers

The prime factorization of 12840905 is 385 × 33353. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 3, 45, 43, 141, 25, 8030, 3530, 97720, 27877, 436230, 76973, 2024701, 6658604, 59480645, 27166015, 335626289, 961346829, 267658521, 7567914600

Basic calculations (n = 12840905)

Multiplication

n×y

n×2	25681810
n×3	38522715
n×4	51363620
n×5	64204525

Division

n÷y

n÷2	6420452.5
n÷3	4280301.6666667
n÷3	3210226.25
n÷5	2568181

Exponentiation

n^y

n²	164888841219025
n³	2.1173219456536E+21
n⁴	2.7188329958553E+28
n⁵	3.4912276210643E+35

Nth Root

^y√n

²√n	3583.4208516444
³√n	234.1703352276
⁴√n	59.861680995812
⁵√n	26.407003718124

Divisors of 12840905

1, 385, 33353, 12840905

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-12840904	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12840905 can be divided by 4 positive divisors. The sum of these divisors (counting 12840905) is 1, the average is 0.25.

Base conversion 12840905

Base	System	Value
2	Binary	110000111110111111001001
3	Ternary	220011101102002
4	Quaternary	300332333021
5	Quinary	11241402110
6	Senary	1135120345
8	Octal	60767711
10	Decimal	12840905
12	Duodecimal	43730b5
16	Hexadecimal	c3efc9
20	Vigesimal	405255
36	Base36	7n83t

Cryptographic Hash Functions

md5	e056e1869d01ded293ced1d5f1000689
sha1	228352acbd2340ce3989fabf3e91fa4467a301ab
sha256	272573bc53bb2fb49419214cb9cf897161c230c65c3306f577a33b7c8c93f249
sha512	5151f19102751cb1787bc1bdd2535b42fa17aad43144fc9641b53cb710c297fd0a5fee43ebd5f49c584fd2af0a297c9a78615868d68a5f55cacc8c2ff650435f
ripemd-160	c0c74859fab37e0fc9f0d935d6d265ac57cf4dc0

12840905 as geometric shapes

Circle

Radius = n

Diameter	25681810
Circumference	80681785.626889
Area	5.1801357223262E+14

Sphere

Radius = n

Volume	8.869017426333E+21
Surface area	2.0720542889305E+15
Circumference	80681785.626889

Square

Length = n

Perimeter	51363620
Area	164888841219025
Diagonal	18159782.004144

Cube

Length = n

Surface area	989333047314150
Volume	2.1173219456536E+21
Space diagonal	22241099.875165

Equilateral Triangle

Length = n

Perimeter	38522715
Area	71398962648127
Altitude	11120549.937583

Triangular Pyramid

Length = n

Surface area	71398962648127
Volume	2.4952878428779E+20
Height	6053260.6680482